/*! ----------------------------------------------------------------------------
 *  @file    syscalls.c
 *  @brief   Standard syscalls platform-specific implementation
 *
 * @attention
 *
 * Copyright 2015 (c) Decawave Ltd, Dublin, Ireland.
 *
 * All rights reserved.
 *
 * @author Decawave
 */
//#include <sys/types.h>
#include "port.h"

/*! ------------------------------------------------------------------------------------------------------------------
 * @fn _sbrk()
 *
 * @brief  Increment heap pointer to allow dynamic memory allocation.
 *
 * @param  incr  size of the heap increment to perform, in bytes
 *
 * @return  pointer on the previous heap end or -1 if memory is full and increment cannot be performed.
 */
//caddr_t _sbrk(int incr)
//{
//    extern char _ebss; /* Defined by the linker. */
//    static char *heap_end;
//    char *prev_heap_end;
//    char *stack;

//    if (heap_end == 0)
//    {
//        heap_end = &_ebss;
//    }

//    prev_heap_end = heap_end;

//    stack = (char*) port_GET_stack_pointer();

//    if (heap_end + incr > stack)
//    {
//        return (caddr_t) -1;
//    }

//    heap_end += incr;

//    return (caddr_t) prev_heap_end;
//}
